downshifting to 1st gear trouble...

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VermilionX
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#51 Post by VermilionX »

CNF2002 wrote:
Whats the point of it? It can only be bad for your tranny unless you absolutely know what you are doing. A few days ago you posted that you are trying this, and now you are posting that you are having problems shifting into 1st.

Ride like a beginner...stop trying to do expert stuff, its not good for the bike.

Anyway, it could also be low tranny fluid. Maybe when you crashed, some spilled out! Check the level.
it only happened a few times, like less than 5 times. im not constantly having problems downshifting to 1st gear.

anyway, i already found the answer and made it clear to me now.
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zarakand
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#52 Post by zarakand »

This thread has become almost as amusing to read as the Mean Streak thread...which surprisingly enough went on a Mean Streak. I crack me up :laughing: All right it's true, there has been a little too much coffee...
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VermilionX
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#53 Post by VermilionX »

they love me around here. :wink:
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#54 Post by zarakand »

Has anyone ever nominated you for mascott?
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#55 Post by VermilionX »

nope not yet.

the almighty mike is having trouble looking for a venue to host the TMW user awards. :laughing:
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#56 Post by Kal »

Kind of like the Darwin awards but on two wheels...
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#57 Post by Posthumane »

I don't mean to step on anybody's toes, but I think there is a little misinformation going around here regarding bike trannies...

First of all, the gixxer, as well as most bikes, uses a dog box tranny in which none of the gears are synchonised. Clutchless shifting on a synchronised tranny is much more difficult to do as the revs have to be almost perfectly matched, whereas a dog box has more slop. It is used in sport bikes (and race cars) because it is ligher, and sligthly more efficient.

Second, a clutchless shift does not cause any more wear on the tranny than a clutched one IF DONE PROPERLY. By properly, I mean the revs have to be perfectly matched. If you get even a slight jerk or grind, then you are not doing it properly. In order to rev match the gears on a bike, you have to blip the throttle to the right rpms, as well as partly engaged the clutch (just slightly) to accelerate the input side of the tranny to engine speed while between gears. That being said, you aren't gaining a whole helluva lot by clutchless shifting. Even on a dragstrip, most of the good guys still used the clutch (they also powershift, but we won't go into that cuz Vern will just blow up his engine trying it).

Third, there is a difference between a totally clutchless shift, and a partly disengaged shift. Although the engine is still connected to the input side of the tranny on a half clutch shift, you ease some of the pressure off of the clutch springs allowing the clutch to slip slightly with the shock of an inproperly matched shift. This works kind of like the slipper clutches that some sportbikes come with that allow the clutch to slip a bit on the coast side to take up downshifting shocks without upsetting the bike on corner entry.

But I would strongly recommend that you learn to do the basics PERFECTLY before trying to move on to more advanced techniques. You should be able to get a really fast and smooth shift while still fully disengageing the clutch. If you can't, don't pretend your good enough to start dragging knees or winning drag racing titles...
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